Geometry

2. When the sum of two angles is 90°
6. a collection of points along a straight path that extends endlessly in both directions.
7. the type of angle that measures 180 degrees (180°)
9. When two rays combine with a common endpoint and the angle is formed.
10. a part of the line segment that has only one endpoint a point at which a line segment or a ray ends.
11. An angle whose measure is ninety degrees (90°)

1. An angle whose measure is more than zero degrees 0° and less than ninety degrees 90°
3. An angle whose measure is more than ninety degrees (90°) and less than one hundred and eighty degrees (180°)
4. If a ray is rotated about its endpoint, the measure of its rotation is called the angle between its initial and final position.
5. an exact location in space. It has no dimensions.
8. a line intersecting two or more given lines in a plane at different points.